The Construction Method of Manual Excavation: After the foundation pit excavation is completed, the main reinforcement and acoustic measurement pipe of the steel cage are first chiseled out manually using a pneumatic chisel, followed by the separation of the pile heads, and then the pile heads are lifted using large-scale machinery.

The Construction Method of Pile Head Overall Demolition: After the foundation pit excavation is completed, drill holes vertically along the pile body direction using an air drill at a height of 250px above the pile top elevation. The depth of the holes only needs to reach 1/5 of the pile diameter. Then, insert the separation wedge into the drilled holes and strike it with external force until the pile head separates from the pile body surface at the drilled location, and then lift out the upper pile head.

The principle of pile cap excavation lies in the concrete pouring process of the pile body, where during the vibration process, air bubbles or voids within the concrete rise to the top section of the pile. Within a certain range at the pile top, there is froth, or a mixture of mud and slurry during underwater concrete pouring. To ensure the strength of the pile concrete, it is necessary to chisel off the upper false pile.

Above is the introduction to the construction methods of pile heads. If you have any further questions, feel free to consult our website, where we have professionals ready to explain.